:root {
  --bg:       #07090f;
  --bg2:      #0c1020;
  --card:     #111828;
  --card2:    #151e30;
  --border:   rgba(255,255,255,.06);
  --border-g: rgba(56,189,248,.22);
  --text:     #e8f2ff;
  --sub:      #7090b8;
  --dim:      #2e4166;
  --em:       #38bdf8;   /* sky blue accent */
  --em2:      #7dd3fc;   /* light sky blue */
  --em3:      #0369a1;   /* deep blue */
  --amber:    #93c5fd;   /* soft blue for active lyric */
  --rose:     #818cf8;
  --em-glow:  rgba(56,189,248,.2);
  --r:        14px;
  --rs:       8px;
  --topbar-h: 52px;
  --tab-h:    50px;
  --bar-h:    70px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Space Grotesk', 'Noto Sans KR', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding-bottom: calc(var(--bar-h) + 14px);
  -webkit-font-smoothing: antialiased;
}

/* subtle noise texture overlay */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
  pointer-events: none;
  opacity: .4;
}

* { position: relative; z-index: 1; }

/* ════════════════════════════
   TOP NAV
   ════════════════════════════ */
.topbar {
  position: sticky; top: 0; z-index: 100;
  height: var(--topbar-h);
  background: rgba(7,9,15,.92);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 18px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 32px; height: 32px; border-radius: 9px;
  background: linear-gradient(135deg, var(--em3), var(--em));
  display: grid; place-items: center;
  box-shadow: 0 0 14px rgba(56,189,248,.3);
}
.brand-mark svg { width:16px; height:16px; fill: #fff; }
.brand-tx .n1 { font-size: .82rem; font-weight: 700; color: var(--text); line-height:1.2; }
.brand-tx .n2 { font-size: .62rem; color: var(--dim); }
.topbar-r { display: flex; align-items: center; gap: 8px; }
.sw-pill {
  display: inline-flex; align-items: center; gap: 5px;
  background: rgba(56,189,248,.07); border: 1px solid rgba(56,189,248,.18);
  border-radius: 999px; padding: 3px 10px;
  font-size: .63rem; font-weight: 500; color: var(--em2);
}
.sw-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--em); box-shadow: 0 0 6px rgba(56,189,248,.7);
  animation: pulse-dot 2.2s ease-in-out infinite;
}
@keyframes pulse-dot { 0%,100%{opacity:1} 50%{opacity:.35} }

#installBtn {
  appearance: none;
  border: 1px solid var(--border-g); background: rgba(56,189,248,.07);
  color: var(--em2); border-radius: 999px;
  padding: 4px 13px; font: 500 .68rem 'Space Grotesk', sans-serif;
  cursor: pointer; transition: .18s;
}
#installBtn:hover { background: rgba(56,189,248,.16); }
#installBtn[hidden] { display: none; }

/* ════════════════════════════
   TABS
   ════════════════════════════ */
.tabs {
  position: sticky; top: var(--topbar-h); z-index: 90;
  display: flex; background: var(--bg2);
  border-bottom: 1px solid var(--border);
}
.tab-btn {
  flex: 1; height: var(--tab-h);
  background: transparent; border: none;
  color: var(--dim); font: 500 .78rem 'Space Grotesk', sans-serif;
  cursor: pointer; display: flex; align-items: center;
  justify-content: center; gap: 6px;
  position: relative; transition: color .2s;
}
.tab-btn .ico { font-size: .9rem; }
.tab-btn.active { color: var(--em2); }
.tab-btn::after {
  content: ''; position: absolute;
  bottom: 0; left: 18%; right: 18%; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--em3), var(--em));
  transform: scaleX(0); transition: transform .24s cubic-bezier(.4,0,.2,1);
}
.tab-btn.active::after { transform: scaleX(1); }

/* ════════════════════════════
   TAB PANELS
   ════════════════════════════ */
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.wrap { max-width: 640px; margin: 0 auto; padding: 20px 16px; }

/* ════════════════════════════
   ① PLAYER TAB
   — Landscape: art LEFT, lyrics RIGHT
   — Portrait: art top, lyrics below
   ════════════════════════════ */
.player-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  grid-template-rows: auto auto;
  gap: 0 20px;
  align-items: start;
}
/* art column spans 1 row */
.art-col { grid-column: 1; grid-row: 1 / 3; }
/* info + controls */
.ctrl-col { grid-column: 2; grid-row: 1; }
/* lyrics takes full width below */
.lyrics-row { grid-column: 1 / 3; grid-row: 3; margin-top: 18px; }

/* — album art — */
.art-frame {
  position: relative; width: 100%; aspect-ratio: 1;
  display: grid; place-items: center; margin-bottom: 14px;
}
.art-glow {
  position: absolute; inset: -12px; border-radius: 50%;
  background: radial-gradient(circle, rgba(56,189,248,.18) 0%, transparent 70%);
  animation: glow-breathe 3.5s ease-in-out infinite;
}
@keyframes glow-breathe { 0%,100%{opacity:.5;transform:scale(1)} 50%{opacity:1;transform:scale(1.05)} }
.art-border {
  position: absolute; inset: -2px; border-radius: 22px;
  border: 1.5px solid rgba(56,189,248,.28);
}
.art-img {
  width: 100%; height: 100%; border-radius: 20px;
  object-fit: cover; display: block;
  box-shadow: 0 10px 40px rgba(0,0,0,.7), 0 0 0 1px rgba(255,255,255,.05);
  transition: filter .4s;
}
.art-img.spinning { animation: art-spin 10s linear infinite; border-radius: 50%; }
.art-img.spinning.paused { animation-play-state: paused; }
@keyframes art-spin { to { transform: rotate(360deg); } }

/* eq overlay on art */
.art-eq {
  position: absolute; bottom: 8px; left: 50%; transform: translateX(-50%);
  display: flex; align-items: flex-end; gap: 3px;
  background: rgba(7,9,15,.78); border: 1px solid var(--border-g);
  border-radius: 999px; padding: 5px 10px;
  opacity: 0; transition: opacity .3s;
}
.art-eq.on { opacity: 1; }
.eq-b { width: 3px; border-radius: 2px; background: var(--em); }
.eq-b:nth-child(1){height:7px; animation:eb1 .65s ease-in-out infinite alternate}
.eq-b:nth-child(2){height:13px;animation:eb2 .48s ease-in-out infinite alternate}
.eq-b:nth-child(3){height:9px; animation:eb3 .8s ease-in-out infinite alternate}
.eq-b:nth-child(4){height:5px; animation:eb1 .55s ease-in-out infinite alternate}
@keyframes eb1{to{height:3px}} @keyframes eb2{to{height:5px}} @keyframes eb3{to{height:4px}}

/* — song meta — */
.song-meta { margin-bottom: 14px; }
.song-t {
  font-size: 1.05rem; font-weight: 700; color: var(--text);
  line-height: 1.3; margin-bottom: 4px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.song-a { font-size: .75rem; color: var(--sub); }

/* — progress — */
.prog-wrap { margin-bottom: 14px; }
.time-row {
  display: flex; justify-content: space-between;
  font-size: .65rem; color: var(--dim);
  font-variant-numeric: tabular-nums; margin-bottom: 6px;
}
input.range {
  width: 100%; -webkit-appearance: none; appearance: none;
  height: 3px; border-radius: 999px;
  background: rgba(56,189,248,.12); outline: none; cursor: pointer;
  transition: height .15s;
}
input.range:hover { height: 5px; }
input.range::-webkit-slider-thumb {
  -webkit-appearance: none; width: 13px; height: 13px;
  border-radius: 50%; background: var(--em);
  box-shadow: 0 0 8px rgba(56,189,248,.6);
  transition: transform .12s;
}
input.range::-webkit-slider-thumb:active { transform: scale(1.4); }
input.range::-moz-range-thumb {
  width: 13px; height: 13px; border-radius: 50%; border: 0;
  background: var(--em);
}

/* — transport — */
.transport {
  display: flex; align-items: center; justify-content: flex-start;
  gap: 4px; margin-bottom: 12px;
}
.ib {
  appearance: none; border: 0; background: transparent; cursor: pointer;
  color: var(--sub); width: 40px; height: 40px; border-radius: 10px;
  display: grid; place-items: center; font-size: .95rem;
  transition: background .14s, color .14s, transform .1s;
}
.ib:hover { background: rgba(56,189,248,.07); color: var(--text); }
.ib:active { transform: scale(.88); }
.ib.lit { color: var(--em); }
.play-btn {
  width: 52px !important; height: 52px !important;
  border-radius: 14px !important; font-size: 1.2rem !important;
  background: linear-gradient(135deg, var(--em3), var(--em)) !important;
  color: #fff !important;
  box-shadow: 0 4px 20px rgba(56,189,248,.35) !important;
}
.play-btn:hover { transform: scale(1.08) !important; box-shadow: 0 6px 28px rgba(56,189,248,.5) !important; }

/* — vol + mode row — */
.bottom-row {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.mode-grp { display: flex; gap: 5px; }
.vol-grp { display: flex; align-items: center; gap: 7px; flex: 1; min-width: 80px; }
.vi { font-size: .8rem; color: var(--dim); }
.vol-grp .range { flex: 1; }

/* ════════════════════════════
   LYRICS SECTION — Big & Centered
   ════════════════════════════ */
.lyrics-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
}
.lyrics-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px 10px;
  border-bottom: 1px solid var(--border);
}
.lyrics-label-txt {
  font-size: .63rem; font-weight: 600;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--dim);
}
.lrc-track-name {
  font-size: .72rem; color: var(--sub);
  white-space: nowrap; overflow: hidden;
  text-overflow: ellipsis; max-width: 200px;
}

/* The main lyrics viewport */
.lyrics-viewport {
  height: 260px;
  overflow: hidden;
  position: relative;
  padding: 0;
}
/* only bottom fade — top is clean so first line is always visible */
.lyrics-viewport::after {
  content: ''; position: absolute;
  left: 0; right: 0; height: 48px; z-index: 2; pointer-events: none;
  bottom: 0;
  background: linear-gradient(to top, var(--card) 0%, transparent 100%);
}

#lyricsInner {
  position: absolute; left: 0; right: 0;
  top: 12px;  /* fixed top padding — never goes above this */
  transition: top .36s cubic-bezier(.4, 0, .2, 1);
  padding: 0 18px;
}

.lyric-line {
  height: 44px; line-height: 44px;
  font-size: .88rem; color: var(--dim);
  text-align: center;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: color .26s ease, font-size .26s ease, opacity .26s ease;
  opacity: .45;
  font-weight: 400;
  letter-spacing: .01em;
}
/* lines near active */
.lyric-line.near {
  color: var(--sub);
  opacity: .7;
  font-size: .88rem;
}
/* THE ACTIVE LINE */
.lyric-line.active {
  color: #e0f2fe;
  font-size: 1.06rem;
  font-weight: 700;
  opacity: 1;
  text-shadow: 0 0 18px rgba(56,189,248,.45);
  letter-spacing: .02em;
}

/* lyrics footer — progress mini */
.lyrics-footer {
  padding: 10px 18px;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}
.lf-time { font-size: .65rem; color: var(--dim); font-variant-numeric: tabular-nums; white-space: nowrap; }
.lf-bar {
  flex: 1; height: 2px; border-radius: 999px;
  background: rgba(56,189,248,.1); overflow: hidden;
}
.lf-fill {
  height: 100%; background: linear-gradient(90deg, var(--em3), var(--em));
  width: 0%; transition: width .5s linear;
}

/* ════════════════════════════
   ② PLAYLIST TAB
   ════════════════════════════ */
.pl-hd {
  display: flex; align-items: center;
  justify-content: space-between; margin-bottom: 14px;
}
.pl-hd-t { font-size: .82rem; font-weight: 600; color: var(--sub); }
.cnt-badge {
  font-size: .68rem; font-weight: 700;
  background: rgba(56,189,248,.08); border: 1px solid var(--border-g);
  color: var(--em2); border-radius: 999px; padding: 2px 11px;
}
.track-list { display: flex; flex-direction: column; gap: 6px; }
.track-btn {
  display: grid; grid-template-columns: 50px 1fr auto;
  gap: 12px; align-items: center;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--r); padding: 10px 14px 10px 10px;
  cursor: pointer; transition: border-color .16s, background .16s, transform .1s;
  text-align: left; color: inherit; font: inherit;
  width: 100%; appearance: none;
}
.track-btn:hover { border-color: rgba(56,189,248,.22); background: var(--card2); }
.track-btn:active { transform: scale(.99); }
.track-btn.active {
  border-color: rgba(56,189,248,.38);
  background: linear-gradient(90deg, rgba(56,189,248,.09), var(--card));
}
.t-thumb { width:50px; height:50px; border-radius:11px; object-fit:cover; background:var(--card2); flex-shrink:0; }
.t-ph { width:50px; height:50px; border-radius:11px; background:var(--card2); display:none; place-items:center; font-size:1.3rem; color:var(--dim); }
.t-meta { min-width:0; }
.t-name {
  font-size:.85rem; font-weight:600; color:var(--text);
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.track-btn.active .t-name { color: var(--em2); }
.t-by { font-size:.7rem; color:var(--sub); margin-top:3px; }
.eq-sm { display:flex; align-items:flex-end; gap:2px; height:14px; }
.esb { width:3px; border-radius:2px; background:var(--em); }
.esb:nth-child(1){height:8px; animation:eb1 .65s ease-in-out infinite alternate}
.esb:nth-child(2){height:14px;animation:eb2 .48s ease-in-out infinite alternate}
.esb:nth-child(3){height:6px; animation:eb3 .8s ease-in-out infinite alternate}

/* ════════════════════════════
   ③ LINKS TAB
   ════════════════════════════ */
.links-list { display:flex; flex-direction:column; gap:10px; }
.lk-card {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r); padding:14px 16px;
  display:flex; flex-direction:column; gap:10px;
}
.lk-head { display:flex; align-items:center; gap:10px; }
.lk-num {
  width:28px; height:28px; border-radius:7px;
  background:rgba(56,189,248,.08); border:1px solid var(--border-g);
  display:grid; place-items:center;
  font-size:.68rem; font-weight:700; color:var(--em2); flex-shrink:0;
}
.lk-title {
  font-size:.86rem; font-weight:600; color:var(--text);
  flex:1; min-width:0; white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.lk-btns { display:flex; flex-wrap:wrap; gap:7px; }
.lk-btn {
  display:inline-flex; align-items:center; gap:6px;
  text-decoration:none; font-size:.74rem; font-weight:500;
  padding:7px 14px; border-radius:999px; border:1px solid;
  transition:.16s; cursor:pointer; white-space:nowrap;
}
.lk-btn.mp3  { color:var(--em2);  border-color:rgba(56,189,248,.28); background:rgba(56,189,248,.06); }
.lk-btn.mp3:hover  { background:rgba(56,189,248,.16); border-color:rgba(56,189,248,.5); }
.lk-btn.lrc  { color:#93c5fd; border-color:rgba(147,197,253,.22); background:rgba(147,197,253,.05); }
.lk-btn.lrc:hover  { background:rgba(147,197,253,.13); }
.lk-btn.yt   { color:#fca5a5; border-color:rgba(252,165,165,.22); background:rgba(252,165,165,.05); }
.lk-btn.yt:hover   { background:rgba(252,165,165,.13); }
.lk-btn.off  { color:var(--dim); border-color:var(--border); background:transparent; pointer-events:none; }
.info-card {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r); padding:16px; margin-top:16px;
}
.info-lbl { font-size:.6rem; letter-spacing:.15em; text-transform:uppercase; color:var(--dim); margin-bottom:10px; }
.info-body { font-size:.8rem; color:var(--sub); line-height:1.75; }
.info-body a { color:var(--em2); text-decoration:none; font-weight:500; }
.info-body a:hover { text-decoration:underline; }

/* refresh */
.refresh-row { display:flex; justify-content:center; margin-top:18px; }
.ghost-btn {
  appearance:none; border:1px solid var(--border); background:transparent;
  color:var(--dim); border-radius:999px; padding:6px 18px;
  font:.7rem 'Space Grotesk', sans-serif; cursor:pointer; transition:.18s;
}
.ghost-btn:hover { border-color:var(--border-g); color:var(--em2); }

/* ════════════════════════════
   FIXED MINI PLAYER BAR
   ════════════════════════════ */
.mini-bar {
  position:fixed; bottom:0; left:0; right:0; z-index:200;
  height:var(--bar-h);
  background:rgba(7,9,15,.96);
  backdrop-filter:blur(24px); -webkit-backdrop-filter:blur(24px);
  border-top:1px solid rgba(56,189,248,.12);
  display:flex; align-items:center; gap:12px; padding:0 18px;
}
.mini-prog-rail { position:absolute; top:0; left:0; right:0; height:2px; background:rgba(255,255,255,.04); }
.mini-prog-fill { height:100%; background:linear-gradient(90deg, var(--em3), var(--em)); width:0%; transition:width .5s linear; }
.mini-art { width:44px; height:44px; border-radius:10px; object-fit:cover; background:var(--card2); flex-shrink:0; border:1px solid var(--border); }
.mini-meta { flex:1; min-width:0; }
.mini-t { font-size:.82rem; font-weight:600; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; color:var(--text); }
.mini-a { font-size:.67rem; color:var(--sub); margin-top:2px; }
.mini-ctrls { display:flex; align-items:center; gap:2px; flex-shrink:0; }
.mb {
  appearance:none; border:0; background:transparent; cursor:pointer;
  color:var(--sub); width:40px; height:40px; border-radius:10px;
  font-size:1rem; display:grid; place-items:center; transition:.14s;
}
.mb:hover { color:var(--text); background:rgba(56,189,248,.07); }
.mb.mplay {
  width:46px !important; height:46px !important;
  background:linear-gradient(135deg, var(--em3), var(--em)) !important;
  color:#fff !important; border-radius:12px !important;
  box-shadow:0 2px 14px rgba(56,189,248,.35);
}
.mb.mplay:hover { transform:scale(1.07); }

/* ════════════════════════════
   RESPONSIVE
   ════════════════════════════ */
@media (max-width: 520px) {
  .player-layout {
    grid-template-columns: 1fr;
  }
  .art-col  { grid-column:1; grid-row:1; }
  .art-frame { width: min(180px, 55vw); margin: 0 auto 16px; }
  .ctrl-col { grid-column:1; grid-row:2; }
  .lyrics-row { grid-column:1; grid-row:3; }
  .transport { justify-content: center; }
  .bottom-row { justify-content: center; }
}

/* ════════════════════════════
   UPDATE MODAL
════════════════════════════ */
.modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 1;
  visibility: visible;
  transition: opacity 0.3s ease, visibility 0.3s;
}

.modal.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.modal-content {
  background: var(--card);
  border: 1px solid var(--border-g);
  border-radius: var(--r);
  padding: 24px;
  width: 90%;
  max-width: 400px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 0 1px var(--border);
  text-align: center;
  transform: translateY(0) scale(1);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal.hidden .modal-content {
  transform: translateY(20px) scale(0.95);
}

.modal-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.modal-content p {
  font-size: 0.95rem;
  color: var(--sub);
  margin-bottom: 24px;
  line-height: 1.5;
}

.modal-content label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--sub);
  cursor: pointer;
  margin-bottom: 20px;
}

.modal-content input[type="checkbox"] {
  accent-color: var(--em);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

#closeUpdate {
  background: linear-gradient(135deg, var(--em3), var(--em));
  color: #fff;
  border: none;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  width: 100%;
}

#closeUpdate:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 16px var(--em-glow);
}